OXNARD, Calif. — Dallas Cowboys cornerback B.W. Webb will not be punished by the team for interacting with an Oakland Raiders fan during an on-field brawl that erupted in a joint training camp practice Tuesday night.

Video showed a Raiders fan appearing to swing a silver helmet at Webb. The cornerback, who had entered the scrum that started with teammate Morris Claiborne and Oakland tight end Mychal Rivera, spun around and swung his arm.

Webb told USA TODAY Sports on Tuesday night that he felt someone on his back and, at first, believed it was another player in the scrum. Cowboys coach Jason Garrett doesn't believe Webb did anything wrong, given the heated situation, and officially exonerated him.

"Obviously we're not for it," Garrett said Wednesday morning. "It billowed up over there right by that fence. That's just the nature of it. At some point, as a player, you have to defend your teammate, get yourself in there and make sure he's going to be OK. Always have your guy's back, that's part of building a football team. At the same time, poise in that situation is important, and I think we demonstrated both."

Raiders fans and Cowboys fans will be separated when practice begins today. Part of the two-hour session is expected to take place on the field near the Raiders' fan section, though the scrimmage portion of practice will occur on the field closest to the Dallas fans.

Once again, there is a heavy police presence inside the practice facility, and on Wednesday morning it appeared there were more officers stationed between the sideline and the fence on the Raiders' side of the field.

The NFL has not responded to a request for comment on Tuesday's fight.

QB Russell Wilson watches from the Seahawks practice facility in Renton, Wash., as a Marines swimmer jumps from a helicopter into Lake Washington during a military demonstration July 31. Ted S. Warren, AP

Kansas City Chiefs running backs coach Eric Bieniemy gives instruction to Jamaal Charles during a NFL training camp, Wednesday, July 30, 2014 on the Missouri Western State University campus in St. Joseph. Mo. Todd Weddle, AP